package Threadtest;


public class demo4 {
    public static volatile int count = 0;
    public static void main(String[] args) throws InterruptedException {

        Object locker = new Object();
        Object locker2 = new Object();
        Thread t1 = new Thread(()->{
            for (int i = 0; i < 5000; i++) {
                synchronized(locker){
                    count++;
                }

            }
        });
        Thread t2 = new Thread(()->{
            for (int i = 0; i < 5000; i++) {
                synchronized (locker){
                    count++;
                }

            }
        });
        t1.start();
        t2.start();

        t1.join();
        t2.join();
        System.out.println("count = "+count);
    }

}
